Even private land owners do unethical things. As far as remembering your tag, you also have to remember your other items for hunting. I found out the hard way when I got to Canada and found out I packed everything but my hunting clothes. I've known guys to ditch their orange when hunting. Not a good idea. Its just my opinion, nothing more. Just be careful. No deer is worth dieing for.
As I said, I was up by Rice Lake when the shooting happened. That sure put a damper on deer camp that year. That back tag number helped put the shooter behind bars for along time.

http://www.washingtonpost.com/wp-dyn/articles/A3531-2004Nov22.html